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. 2021 Aug 31;13(9):3071. doi: 10.3390/nu13093071
Breast Anatomy
Number of ductal openings on the nipple is 4–18 (previously 15–20)
Milk ducts branch close to the nipple
The conventionally described lactiferous sinuses do not exist
Milk ducts can reside close to the skin surface and are easily compressible
Most of the glandular tissue is found within 30 mm of the nipple